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Biodegradable resin composition as well as preparation method and application thereof

A resin composition and biodegradation technology, applied in the direction of conjugated synthetic polymer rayon, etc., can solve problems such as unfavorable environmental protection, and achieve good mechanical properties and biodegradability, high transparency, and excellent impact strength. Effect

Pending Publication Date: 2022-04-01
SHANGHAI HUAFON NEW MATERIAL R&D TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the modifier used in this method is non-biodegradable styrene-butadiene rubber, which is not conducive to environmental protection

Method used

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  • Biodegradable resin composition as well as preparation method and application thereof
  • Biodegradable resin composition as well as preparation method and application thereof
  • Biodegradable resin composition as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0036] A kind of carbon dioxide base polycarbonate, its preparation method comprises: in the autoclave of 2L, with 560mL methylene dichloride (moisture content 15ppm), 3.0g diethylzinc-glycerin-trichloroacetate yttrium ternary rare earth catalyst , 80mL of epoxycyclohexane (moisture content 60ppm) and 480mL of 1,2-propylene oxide (moisture content 26ppm) were mixed evenly, then poured into 1300g of carbon dioxide under the condition of stirring, the temperature was raised to 95°C, and after 16 hours of polymerization reaction Cool to below 40°C, slowly release the pressure to normal pressure, open the autoclave to obtain the mixture, wash the mixture 3 times with absolute ethanol, and dry at 60°C for 12 hours under the condition of vacuum degree of -0.1MPa to obtain the obtained Carbon dioxide-based polycarbonate.

[0037] The carbon dioxide-based polycarbonate that this preparation example obtains has structure as shown below:

[0038]

[0039] to CDCl 3 as a solvent, thro...

preparation example 2

[0041] A kind of carbon dioxide base polycarbonate, its preparation method comprises: in the autoclave of 2L, with 560mL methylene dichloride (moisture content 15ppm), 3.0g diethylzinc-glycerin-trichloroacetate yttrium ternary rare earth catalyst , 410mL of epoxycyclohexane (moisture content 60ppm) and 290mL of 1,2-propylene oxide (moisture content 26ppm) were mixed evenly, and then 1100g of carbon dioxide was poured into it under stirring conditions, and the temperature was raised to 75°C. After 12 hours of polymerization reaction Cool to below 40°C, slowly release the pressure to normal pressure, open the autoclave to obtain the mixture, wash the mixture 3 times with absolute ethanol, and dry at 60°C for 12 hours under the condition of vacuum degree of -0.1MPa to obtain the obtained Carbon dioxide-based polycarbonate.

[0042] The carbon dioxide-based polycarbonate that this preparation example obtains has structure as shown below:

[0043]

[0044] to CDCl 3 as a solve...

preparation example 3

[0046] A kind of carbon dioxide base polycarbonate, its preparation method comprises: in the autoclave of 2L, with 560mL methylene dichloride (moisture content 15ppm), 3.0g diethylzinc-glycerin-trichloroacetate yttrium ternary rare earth catalyst , 780mL epoxycyclohexane (moisture content 60ppm) and 60mL 1,2-propylene oxide (moisture content 26ppm) were mixed evenly, and then 800g carbon dioxide was poured in under stirring conditions, and the temperature was raised to 65°C. After 8 hours of polymerization reaction Cool to below 40°C, slowly release the pressure to normal pressure, open the autoclave to obtain the mixture, wash the mixture 3 times with absolute ethanol, and dry at 60°C for 12 hours under the condition of vacuum degree of -0.1MPa to obtain the obtained Carbon dioxide-based polycarbonate.

[0047] The carbon dioxide-based polycarbonate that this preparation example obtains has structure as shown below:

[0048]

[0049] to CDCl 3 as a solvent, through 1 H-...

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Abstract

The invention provides a biodegradable resin composition as well as a preparation method and application thereof, the resin composition comprises the following components in parts by weight: 60-95 parts of carbon dioxide-based polycarbonate and 5-40 parts of biodegradable polyester, and the carbon dioxide-based polycarbonate is ternary copolymerized polycarbonate; according to the present invention, the carbon dioxide-based polycarbonate is limited to be the ternary copolymerized polycarbonate, and the characteristic that the ternary copolymerized polycarbonate and the biodegradable polyester have good compatibility is utilized, such that the prepared resin composition has good mechanical property and good biodegradability, and can maintain high transparency; therefore, the composite material can be widely applied to the fields of film blowing products, blow molding products, extrusion products, injection molding products, foaming products or spinning products and the like.

Description

technical field [0001] The invention belongs to the technical field of resin compositions, and in particular relates to a biodegradable resin composition and its preparation method and application. Background technique [0002] Carbon dioxide-based polycarbonate is a non-crystalline, highly transparent resin, and unlike aromatic polycarbonate, which is a similar type of engineering plastic, it exhibits biodegradability and is completely decomposed into water and carbon dioxide after being metabolized by microorganisms. [0003] Among them, polypropylene carbonate (PPC) based on the copolymerization of carbon dioxide and propylene oxide (PO) was the first to achieve industrial mass production and application, and its biodegradation rate is relatively fast. The interaction force is weak, which leads to poor thermal and mechanical properties of PPC, especially the glass transition temperature (T g ) is only 25 ~ 40 ℃, lower T g It also limits the practical application of PPC ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L67/04D01F8/14
Inventor 王晋园胡海波徐达乐黄志洪崔燕军唐劲松
Owner SHANGHAI HUAFON NEW MATERIAL R&D TECH CO LTD